Cadillac 2002 DeVille Owner's Manual page 301

4. Remove the wheel wrench, jack and compact spare
tire from the trunk. See "Compact Spare Tire" later
in this section for more information about the
compact spare tire.
The tools you'll be using include the jack (A) and the
wheel wrench (B).
5-22
Removing the Wheel Cover
Models with Center Wheel Cover
For models having aluminum wheels with a center
wheel cover, use the flat end of the wheel wrench to
gently pry the wheel covers off. Be careful not to scratch
the aluminum wheel edge and don't try to remove it
with your hands.
For models having wheel nuts exposed, use the wheel
wrench to remove the wheel nut covers.